<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>订单管理</el-breadcrumb-item>
      <el-breadcrumb-item>订单列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 面包屑导航区域 -->
    <el-card>

      <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
      <div id="main" style="width: 100%;height:600px;"></div>
    </el-card>
  </div>
</template>

<script>

import * as echarts from 'echarts';

import _ from 'lodash'

export default {
  data () {
    return {

      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }

    }
  },
  async mounted () {
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'));
    const { data: res } = await this.$http.get('reports/type/1')

    console.log(res)

    if (res.meta.status !== 200) {
      return this.$message.error('获取折线图数据失败！')
    }

    // 4. 准备数据和配置项
    const result = _.merge(res.data, this.options)

    // 绘制图表
    myChart.setOption(result);
  },

}

</script>
<style  lang="less" scoped>
</style>
